Crystallinity of Barium Titanate Nanoparticles Synthesized by Sol-Gel Method

Teruhisa Makino; Masashi Arimura; Kunitaka Fujiyoshi; Yoko Yamashita; Makoto Kuwabara

doi:10.4028/www.scientific.net/KEM.350.31

Paper Titles

Magneto-Optical Effects in Superlattice Assemblies of Ferromagnetic Nanosheets
p.15

Liquid-Phase Synthesis of Carbon Nanotubes from Alcohols
p.19

Synthesis of Highly Aligned Carbon Nanotubes in Liquid Phase
p.23

The Characteristics of Fine-Sized LiMn_(12-X)/6Al_x/6O₄(0.05≤x≤2) Powders Prepared by Spray Pyrolysis
p.27

Crystallinity of Barium Titanate Nanoparticles Synthesized by Sol-Gel Method
p.31

Sintering and Dielectric Properties of BaTiO₃ Nano-Particle Prepared by Aerosol Plasma Pyrolysis Process
p.35

Preparation of Barium Titanate Nanoparticles Using Nano-Sized Oxalate and Deposition of their Nanoparticle Dense Films
p.39

Fabrication and Characterization of Alkoxy-Derived (Na, K)NbO₃ Series Powder
p.43

Dielectric Measurement for Barium Titanate Nanoparticles Using Far Infrared Reflection Method
p.47

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Crystallinity of Barium Titanate Nanoparticles Synthesized by Sol-Gel Method

Abstract:

We synthesized barium titanate (BaTiO3) nanoparticles by sol-gel process and investigated their crystallization behavior using differential scanning calorimetry and X-ray diffraction. BaTiO3 nanoparticles with various degrees of crystallinity were obtained by adjusting synthesis conditions. Under aging conditions that do not allow dealcholization reaction to complete, many hydroxyl ligands remain in as-synthesized BaTiO3 nanoparticles, resulting in the formation of voids or defects in the nanoparticles after calcination. It is essential to use high concentration alkoxides precursor solutions for producing BaTiO3 nanoparticles with high crystallinity at low temperature.